From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.net.t-labs.tu-berlin.de (mail.net.t-labs.tu-berlin.de [IPv6:2001:470:96b9:4:130:149:220:252]) by huchra.bufferbloat.net (Postfix) with ESMTP id 9597E21F19B for ; Wed, 19 Dec 2012 04:44:33 -0800 (PST) Received: from [IPv6:2001:470:96b9:1:14cb:af2e:2e24:2838] (ibis.net.t-labs.tu-berlin.de [IPv6:2001:470:96b9:1:14cb:af2e:2e24:2838]) by mail.net.t-labs.tu-berlin.de (Postfix) with ESMTPSA id A55DC4C0F7C for ; Wed, 19 Dec 2012 13:44:32 +0100 (CET) Message-ID: <50D1B6B0.9080501@net.t-labs.tu-berlin.de> Date: Wed, 19 Dec 2012 13:44:32 +0100 From: Oliver Hohlfeld User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121028 Thunderbird/16.0.2 MIME-Version: 1.0 To: bloat@lists.bufferbloat.net References: <54532012A5393D4E8F57704A4D55237E3CE5C5E7@CH1PRD0510MB381.namprd05.prod.outlook.com> <50C89427.8080505@net.t-labs.tu-berlin.de> <50D1AD8A.1020907@net.t-labs.tu-berlin.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Bloat] Bufferbloat at LUG talk - Meeting Report X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Dec 2012 12:44:34 -0000 On 12/19/2012 01:20 PM, Jonathan Morton wrote: > I think we're talking about the "many tabs open" problem. > > But this bothers me as well, actually. Lots of tabs shouldn't affect the > network unless some of the pages in them are actively transferring data > for some reason. I've seen lots of pages that have heavy animation or > Javascript in them, but unless Facebook is even nastier than I was > previously aware of, that doesn't really translate to high network traffic. That was exactly the point I tried to stress in the post quoted by Neil; An open tab does not automatically translate to network traffic, i.e., there is not necessarily causality between "open tab" and "Skype problem". The pure existence of open tabs doesn't say anything; they must trigger data transfers, there is no network impact otherwise. If at all and how web transfers impair voice flows depends on a whole lot of other aspects. I often observe Javascript rendering in Firefox to fully load one CPU core, which sometimes interferes with Skype calls on my systems. But that's not a networking problem and not related to bufferbloat. Oliver